refactor: fix build warnings #16

	# The name of the workflow.
	# This is the name that's displayed for status
	# badges (commonly embedded in README.md files).
	name: build and test

	# Trigger this workflow on a push, or pull request to
	# the main branch, when either C# or project files changed
	on:
	push:
	pull_request:
	branches: [main]
	paths-ignore:
	- "README.md"

	# Create an environment variable named DOTNET_VERSION
	# and set it as "7.0.x"
	env:
	DOTNET_VERSION: "7.0.x" # The .NET SDK version to use

	# Defines a single job named "build-and-test"
	jobs:
	build-and-test:
	# When the workflow runs, this is the name that is logged
	# This job will run three times, once for each "os" defined
	name: build-and-test-${{matrix.os}}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, windows-latest, macOS-latest]

	# Each job run contains these five steps
	steps:
	# 1) Check out the source code so that the workflow can access it.
	- uses: actions/checkout@v2

	# 2) Set up the .NET CLI environment for the workflow to use.
	# The .NET version is specified by the environment variable.
	- name: Setup .NET
	uses: actions/setup-dotnet@v1
	with:
	dotnet-version: ${{ env.DOTNET_VERSION }}

	# 3) Restore the dependencies and tools of a project or solution.
	- name: Install dependencies
	run: dotnet restore

	# 4) Build a project or solution and all of its dependencies.
	- name: Build
	run: dotnet build --configuration Release --no-restore

	# 5) Test a project or solution.
	- name: Test
	run: dotnet test --no-restore --verbosity normal

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